Steelwool

Steelwool is a highly sought-after material in the colder regions of Zephyr. It is obtained from the Steel Wool sheep, a breed native to the mountainous areas of the island. The wool of these sheep is incredibly dense and tightly packed, providing excellent insulation against the cold. The wool has a distinct metallic scent, which is said to be the result of the sheep grazing on mineral-rich grasses.
  Steelwool is highly valued by those who live in cold climates and need to stay warm. It is often used to make heavy winter coats, blankets, and other cold-weather gear. Due to its unique properties, steelwool is also highly prized by mages and alchemists, who use it in the creation of magical items that require resistance to cold or a metallic component.
  Because the Steel Wool sheep are difficult to raise and live in remote and harsh environments, steelwool is a rare and expensive commodity. Those who can obtain it can make a considerable profit by selling it to merchants, traders, and wealthy clients who are willing to pay a premium for the valuable material. However, obtaining the wool is not without risk, as the Steel Wool sheep are known to be fiercely protective of their young and their territory.